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首页> 外文期刊>The Astrophysical journal >POSSIBLE X-RAY DIAGNOSTIC FOR JET/DISK DOMINANCE IN TYPE 1 AGNs
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POSSIBLE X-RAY DIAGNOSTIC FOR JET/DISK DOMINANCE IN TYPE 1 AGNs

机译：1型AGN中可能发生X射线诊断的JET / DISK优势

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摘要

Using Rossi X-Ray Timing Explorer Seyfert 1 and 1.2 data spanning 9 years, we study correlations between X-ray spectral features. The sample consists of 350 time-resolved spectra from 12 Seyfert 1 and 1.2 galaxies. Each spectrum is fitted to a model with an intrinsic power-law X-ray spectrum produced close to the central black hole that is reprocessed and absorbed by material around the black hole. To test the robustness of our results, we performed Monte Carlo simulations of the spectral sample. We find a complex relationship between the iron line equivalent width (EW) and the underlying power-law index (Γ). The data reveal a correlation between Γ and EW, which turns over at Γ approx< 2, but finds a weak anticorrelation for steeper photon indices. We propose that this relationship is driven by dilution of a disk spectrum (which includes the narrow iron line) by a beamed jet component and hence could be used as a diagnostic of jet dominance. In addition, our sample shows a strong correlation between R and Γ, but we find that it is likely the result of modeling degeneracies. We also see the X-ray Baldwin effect (an anticorrelation between the 2-10 keV X-ray luminosity and EW) for the sample as a whole, but not for the individual galaxies and galaxy types.
机译：使用跨越9年的Rossi X射线计时资源管理器Seyfert 1和1.2数据，我们研究了X射线光谱特征之间的相关性。该样本由来自12个塞弗特1号星系和1.2个星系的350个时间分辨光谱组成。每个光谱都适合于模型，该模型具有在中心黑洞附近产生的固有幂律X射线光谱，该光谱被重新处理并被黑洞周围的材料吸收。为了测试结果的稳健性，我们对光谱样品进行了蒙特卡洛模拟。我们发现铁线等效宽度（EW）与基本幂律指数（Γ）之间存在复杂的关系。数据揭示了Γ和EW之间的相关性，该相关性在Γ大约<2处翻转，但是对于较陡的光子指数发现弱的反相关性。我们认为，这种关系是由束状射流分量稀释盘光谱（包括窄铁线）驱动的，因此可以用作射流优势的诊断。此外，我们的样本显示R和Γ之间有很强的相关性，但我们发现这很可能是模型退化的结果。我们还可以看到整个样本的X射线鲍德温效应（2-10 keV X射线光度和EW之间的反相关关系），而不是单个星系和星系类型。

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